Answer:
Step-by-step explanation:
2 Ms. Salgato doesn’t want to spend more than $375 that in symbols can be expressed as [tex]\leq 375[/tex].
$100 is a constant so it doesn’t multiplies the x. The hour are instead a variable so $40 multiplies the x
so the final answer is
C [tex]100+40x\leq 375[/tex]
9 no less than $455 can expressed as [tex]\geq 455[/tex]
if we solve the inequality [tex]245+d\geq 455[/tex]
we have
[tex]d \geq 210[/tex]
so the final answer is A
13
$130 is a constant, while $3 mulplied a variable. No more means [tex]\leq 190[/tex]
we can now write and solve an inequality:
[tex]130+3x\leq 190 \\ 3x\leq 60 \\ x\leq 20[/tex]
so the answer is C : 20
14
$9 multiplies a variable, a minimum can be expressed as [tex]\geq[/tex]
so the final answer is
B : [tex]9h\geq 81[/tex]
